1, If no replacement is forthcoming of the Pro1, and it's looking increasingly likely that this will be the case, what will you now buy.

Would you now rush out to buy one of the last Pro1?
Give up and buy A620 instead.
Give up and wait and see what the noise is like on the S3.
Or already have some other camera in mind (and if so which one).
Wait and see what turns up in the future.

2, If in the future canon produce a 'Prosumer?' with a less noise at higher iso, but smaller sensor and less megapixel would you be interested. This presumably would have a smaller lens and probably would not be 'L' class. Essentially it would be something like a A620 or S3 with Raw and hot-shoe.